"Dear passenger,Unfortunately, the flight you booked will not operate. We apologize for any inconvenience.We regret we are unable to offer you a suitable alternative for your service.If you bought your ticket on or after August 15th 2017 on airberlin.com, you will automatically be refunded thefull ticket price to the form of payment on file. For the refund, you will receive a cancellation invoice.For tickets bought before August 15th 2017, reimbursement is not possible for insolvency reasons. In this case,however, you may submit your claim for reimbursement of the ticket price to be included in the insolvency tableafter the opening of the insolvency proceedings. You will automatically and unsolicitedly receive a form withfurther information after the opening of the insolvency proceedings.You will find further information on airberlin.com and in particular in the FAQ section published there.We once again wish to apologize for any inconvenience caused by the cancellation of your flight."

All Air Berlin flights departing after Sep 25 JFK-TXL or TXL-JFK are canceled. Flights JFK-DUS are still going (as of now)Flights DUS-TLV are also canceled.Seems that the only way to be rebooked will be JFK-DUS-TXL-TLV.

You can pull up your booking on British Airways site, you will see it clearly canceled.

All Air Berlin flights departing after Sep 25 JFK-TXL or TXL-JFK are canceled. Flights JFK-DUS are still going (as of now)Flights DUS-TLV are also canceled.Seems that the only way to be rebooked will be JFK-DUS-TXL-TLV.